You must first check to ensure the technical requirements of each vacuum. Because each process has its adaptability to its vacuum, it must be carefully studied.

On the basis of determining the vacuum degree, the technical requirements of the vacuum limit vacuum pump system are determined, because the vacuum degree of the system restricts the best operation state of the vacuum system. In general, the system is 20% lower than the vacuum system, which is 50% lower than the vacuum pump.

Check to determine the process requirements of the equipment and the suction of the exhaust port. Because if the gas you smoke is reacted with the liquid in the pump, the pump system will be polluted. Appropriate waste gas and exhaust gas must be taken into account in the process of determination.